TALC

Bezeichnung:TALC

CAS-Nr13376-74-4

Englisch Name:TALC

CBNumberCB6674696

SummenformelH2Mg3O12Si4

Molgewicht379.27

MOL-Datei13376-74-4.mol

TALC physikalisch-chemischer Eigenschaften

Schmelzpunkt	800 °C
Dichte	2,7 g/cm³
Brechungsindex	1.54-1.59
storage temp.	-70°C
Aggregatzustand	Talclike material of varying composition, but generally grayish-white, fine, odorless power. It is noncombustible and insoluble in water.
Dielectric constant	5.5 - 7.5（0.0℃）

Sicherheit

Kennzeichnung gefährlicher	Xn,T
R-Sätze:	20-37-61
S-Sätze:	36-45-53
WGK Germany	-
RTECS-Nr.	WW2710000
TSCA	Yes
IDLA	3,000 mg/m3

Gefahreninformationscode (GHS)

TALC Chemische Eigenschaften,Einsatz,Produktion Methoden

R-Sätze Betriebsanweisung:
R20:Gesundheitsschädlich beim Einatmen.
R37:Reizt die Atmungsorgane.
S-Sätze Betriebsanweisung:
S36:DE: Bei der Arbeit geeignete Schutzkleidung tragen.
Chemische Eigenschaften
White, apple-green, gray powder; pearly or greasy luster, greasy feel. Mohs hardness 1–1.5 (may be harder when impure), high resistance to acids, alkalies, and heat.
Verwenden
Chiefly as a ceramic insulator in electronic devices.
Verwenden
Pigment in paint, varnishes; filler for paper, rubber, soap; lubricating molds and machinery; heat insulator.
Definition
A white or pale-green mineralform of magnesium silicate,Mg₃Si₄O₁₀(OH)₂, crystallizing in thetriclinic system. It forms as a secondarymineral by alteration of magnesium-rich olivines, pyroxenes, andamphiboles of ultrabasic rocks. It issoaplike to touch and very soft, havinga hardness of 1 on the Mohs’scale. Massive fine-grained talc isknown as soapstone or steatite. Talcin powdered form is used as a lubricant,as a filler in paper, paints, andrubber, and in cosmetics, ceramics,and French chalk. It occurs chie?y inthe USA, Russia, France, and Japan.
Definition
An extremely soft greenish or white mineral, a hydrous silicate of magnesium. Purified it is sold as talcum powder, and it is used as a lubricant, a filler (in paint and rubber) and an ingredient of some ceramics.
Definition
A natural hydrous magnesium silicate. Compact, massive varieties may be called steatite in distinction from the foliated varieties, which are called talc. Soapstone is an impure variety of steatite.
Hazard
Toxic by inhalation. Effects pulmonary function and causes pulmonary fibrosis. Questionable carcinogen.
Health Hazard
The fibrous talc in soapstone dust causes fibrotic pneumoconiosis; an increased incidence of cancer of the lungs and pleura has been reported.
Industrielle Verwendung
Steatites are noted for their excellent electricalproperties and low cost. They are easily formedand fired at relatively low temperatures. However,compositions containing little or no clayor plastic material present fabricating problemsbecause of a narrow firing range. Steatite partsare vacuum-tight, can be readily bonded toother materials, and can be glazed or ground tohigh-quality surfaces.

TALC Upstream-Materialien And Downstream Produkte

TALC Anbieter Lieferant Produzent Hersteller Vertrieb Händler.

13376-74-4, TALC Verwandte Suche:

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